Millions of people use dating apps, but many need help when they actually embark on a relationship. The good news: There are apps to help turn romance Luddites into Lotharios.

There are thousands of apps that may improve couples’ relationships and sex lives. For couples who need help with the latter, there are apps that could teach couples new tricks, says Rick Singer, CEO of GreatApps.com, a site that reviews apps. But Singer says it’s worth approaching the subject of bringing an app into the bedroom cautiously. “I’m not sure that someone’s significant other wants to hear, ‘I downloaded this app so we can enjoy a better sex life,’” he says.

“It’s the latest instance of sex driving technology,” says Patchen Barss, author of “The Erotic Engine,” about the evolution of sexuality and technology. We’ve come a long way since the Victorian era, when gentleman carried X-rated Stanhope microphotographs in their pocket watches, he says.

And when it comes to improving couples’ relationships outside the bedroom, sometimes apps that have nothing to do with love or sex can provide incidental help: Daniel Hamermesh, professor of economics at The University of Texas at Austin, who has been married for five decades, uses CityMaps2Go ($1.99), an offline map and travel guide, when traveling with his wife, as well as IMDB’s free app for movie trivia. “They’re not designed to help your marriage per se, but they’ve saved us a lot of time and argument.”

Others are skeptical about the usefulness of apps for couples. Carole Lieberman, a psychiatrist in Beverly Hills, says “apps are no substitute for real psychotherapy for relationship problems,” and adds that “there’s no quality control over the so-called love coaches who provide them.” And Joy Davidson, a psychotherapist and author, says, “I honestly can’t think of a single app that actually improves one’s sex life — except maybe Tinder — only because it might help you get a sex life if you don’t already have one.”

Moreover, most of the problems in relationships happen offline, says Nick Drydakis, a senior lecturer in economics at Anglia Ruskin University in Cambridge. In his own study — published by the Institute for the Study of Labor in Bonn, Germany — he found that sexual activity is negatively affected by issues like work-related stress, diabetes, heart disease, arthritis, cancer, and psychiatric and psychological symptoms, while it’s positively affected by good mood (extroverted personalities) and marital status (being married, despite widely held beliefs to the contrary) and growing up in a non-religious home.

But for the technologically savvy, there is some assistance at hand. Here are five apps that could (maybe) improve your love life:

TheIceBreak

This iOS app has the kind of questionnaire you might find on dating apps, but offers daily questions for couples. They focus on a couple’s emotional and sex life: “Do you think it’s more important for a couple to be friends or lovers?” Others are more reminiscent of the questions asked on the TV show “The Newlywed Game” — for example, “What is ‘your song’ with your partner?” Others get to the point: “Can a romantic evening be complete without having sex?” Couples can also share photos and posts on their private virtual walls. It costs $1.99; some reviews complain about technical glitches.

Spreadsheets

Spreadsheets applies the principles of fitness apps (and bookkeeping) to the bedroom, recording the decibel peak and duration of romantic entanglements. It also rewards points for users who decide to take out a gym membership (50 points) and spend time together on a lazy Sunday (20 points). It costs $2.99 on iOS. One reviewer notes, “This app is collecting super valuable data for its users, but without the ability to export that data most of it is lost.” It is meant to be “fun and lighthearted” and “improvement oriented,” according to the makers of the app.

iKamasutra

Available on Google’s Android operating system and Apple’s iOS, iKamasutra has a riff on “there’s an app for that” slogan: “There’s a position for that.” The app has included 110 of the most popular positions from the “Kama Sutra,” the 4th century Hindu manual to erotic love. However, it strips out the prose and delivers the information in handy sound bites. Couples can shake the app to come up with a random suggestion for the evening’s festivities and — perhaps a feature for the less modest — even allows users to share their progress on Facebook and Twitter. The best feature of all: It’s free.

Body Language for Dummies

It’s not cheap ($12.99 on iOS, Google Play and the Amazon Appstore), but it’s full of advice on how to interpret other people’s body language and expressions — whether you’re people-watching or on a date — and how to present oneself in various social settings. Unlike the book Body Language for Dummies, the app has search functions and hyperlinks to jump around to areas of particular interest. For instance, it also gives practical advice to those who are prone to blushing. (Take several slow, deep breaths from your diaphragm to steady your nerves and control your blood flow.) The tips are as useful for the boardroom as the bedroom.

Romeo To Go

Romeo To Go is more like Cyrano de Bergerac on tap — through an app. It’s aimed at those who need a little help in the romance department. It offers tips for people who may freeze up on a date. It also offers conversation starters, such as “what is your greatest fear?” — but that might be too heavy for a first date. It will also ping a romantic idea every day and suggest gifts for birthdays and anniversaries. Free on Android, iOS and Amazon’s Appstore. Don’t expect miracles, but some tips are cute: It suggests hiding notes in the book your mate is reading or placing them on the bathroom mirror.

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